To enable virtualization on a machine with a Z77X-UDH3 motherboard run the BIOS by hitting Del while booting the computer. Once inside click on the BIOS Features tab and look for the Intel Virtualization Technology entry. If it's set on Disabled,
Virtualbox: VT-X is not available
In some cases when you try to get a virtual machine running with Virtualbox or similar virtualization software you will get an error stating that 'VT-X is not available'. This relates to BIOS settings which, depending on your processor, determine